<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../react资料_stu//依赖包/react.development.js"></script>
    <script src="../react资料_stu//依赖包/react-dom.development.js"></script>
    <script src="../react资料_stu//依赖包/babel.min.js"></script>
</head>
<body>
    <div id="app"></div>
    <script type="text/babel">
        class Parent extends React.Component{
            state={
                car:'八手三轮'
            }
            render(){
                const{car}=this.state;
                return (
                    <div>
                        <h1>我是父组件</h1>
                        <p>我开的车是{car}</p>
                        <button onClick={this.changeCarHandle}>拆迁了,换辆车</button>
                        <hr/>
                        <Child a={1} car={car}/>
                        </div>
                )
            }
            changeCarHandle=()=>{
                this.setState({car:'兰博基尼'})
            }
        }
        function Child(props){
            const {car}=props
            return(
                <p>我是儿子组件,我开我老子的车{car}</p>
            )
        }
        ReactDOM.createRoot(document.getElementById('app')).render(<Parent/>)
    </script>
</body>
</html>